Control device and corresponding control method for a boost...

Details Control device and corresponding control method for a boost... Control device and corresponding control method for a boost...

2011-03-01

2011-03-01

Benson, Walter (Department: 2837)

Electricity: motive power systems

Induction motor systems

Braking

C318S727000, C318S757000, C318S759000

Reexamination Certificate

active

07898208

ABSTRACT:
A boost converter boosts a DC voltage of a DC power supply. An inverter converts the output voltage of the boost converter into an AC voltage. A control device that controls the boost converter reduces an output voltage instruction value of the boost converter when the rotation speed of the AC motor decreases and an absolute value of a variation rate of the rotation speed is not less than a predetermined value. The inverter is controlled in the control mode selected from a plurality of control modes including three modes of a sine wave PWM control mode, an overmodulation PWM control mode and a rectangular wave control mode. The control device of the boost converter reduces the output voltage instruction value of the boost converter only when the control mode of the inverter is the rectangular wave control mode or the overmodulation control mode.

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Gökdere L. et al., “A Virtual Prototype for a Hybrid Electric Vehicle,” 2002, Mechatronics, vol. 12, pp. 575-593.

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